Volume-regulator gauge



May 18 1926. 1,584,859

L.. R. HUFF VOLUME REGULATOR GAUGE Filed June 26. 1923 '2 sheets-sheet 2 I nn Z INVENTOR f/ H15 ATToR f Patented Mey i8, lge.

i narran sra QFFECE.

LESLIE R. -IUFF, OF PHLLLSBURG, NEW' JERSEY, ASSIGNOR T0 Ill'GERSOLL-RAND COMPANY, 0F JERSEY GETS?, NEW A GR'RATION 0F NEW JERSEY.

VOLUME-REGULATOR GAUGE.

Application filed J une 2G,

This invention relates to a volume regulator gauge for a turbo compressor, turbo blower or thevlilre, .by means of which the correct height of a liquid column produced 5 by the suction of a Venturi meter or other means, is indicated for a constant weight of oxygen drawn into the machine, at different atmospheric temperatures and baroinet-ric pressures.

It is desirableto regulate the volume of air drawn into a turbo blower, turbo compressor, ork the like for a given temperature and barometric pressure, whereby the proper weight of oxygen delivered to a blast furi5 nace, or wherever required, can be maintained constant, so that the burden on the furnace to suit atmospheric conditions, can be eliminated.

The barometi'io pressure rises and falls daily, and the temperature varies over wide limits as between summer and winter, day or night, or even from hour to hour. When the turbo blower isset for delivering a certain weight of oxygen per minute to the blast furnace, it is not unusual to find that the actual weight delivered has varied considerably from that which would be delivered under standard conditions of air. rlhe blast furnace requires a constant weight of 'Se oxygen for combustion purposes, and if the weight of oxygen varies with each variation rof barometric pressure or temperatur the efficient operation of the furnace is disturbed.

Whenever atmospheric conditions indicatev ai, that the weight of oxygen delivered to the furnace is insufficient to permit proper coinbustion, it becomes necessary to speed up the machine, therebyv augmenting the air volume drawn into the machine. The correct volume of air drawn for Vdelivering a given weight of oxygen has been calculated from the teniperature and baronietric pressure by means of charts, which necessitate considerable time and trouble, and a. change in atmospheric conditions might start the furnace working badly before the burden has changed, or the volume of air corrected.- y

@ne of the objects of the invention is to enable the correct volume of air drawn iiito the machine to be readily and conveniently determined without the aid of charts for a given temperature and barometric pressure,

`Another objectoftlie;invention is to pro- 1923. Serial No. 647,831.

duce a gauge, which may be conveniently ad- ]usted for different weather conditions, so that the proper volume of air to be drawn into a machine may be determined for delivering a given volume of oxygen.

connected to the intake of a turbo compressor.

Figure 2 is a vertical section taken on the line 2-2 of Figure 1 looking inthe direct-ion of the arrows,

Figure 3 is afragmentary detail view in horizontal section, taken on the line 3-3 of Figure 2, and

Figures e and 5 are side elevations of a gauge with the lower part broken away, showing different positions of adjustment.

Referring to the drawings, a turbo compressor A is shown mounted in the usual manner on the foundation B, the floor line C being indicated for purposes of illustration. The intake conduit D of the compressor is preferably provided with a restricted portion in the form of a. Venturi tube E, in which the velocity of the incoming fluid, such as air, is increased, producing sub-atmospheric pressure, as a Venturi tube has been found to be a convenient device for use in connection with a regulator gauge 'of the forin described.

An up-i'ight support or frame F, having a base G is shown mounted on the floor line C, and a glass cylinder or reservoir H, having` a cover d is preferably mounted on the base Gf. A tap. bolt K is threaded into the base G of the tip-right frame, as at L. and holds the cylinder in place. A tube O connects the tap bolt K with the large diameter of the intake D, so that air from the intake may pass into and out of the cylinder H through the tube O, and through the passage P and port Q, iii the tap bolt K. rlhe cylinder H communicates by means of the Vports R. and passage S in the base G with an-up-'right lglass tube T, which is supported in the frame F by means of upper and lower gland nuts TheV tube c,oinmunicates with the throat or restricted portion et the Venturi tube E by r cans of the tube Y.

An indicating member, preterablj' in the 'torni ot an adjustable plate lli, is t'oimed vith diagonal grooves X, in which the pins Y enterltor guiding the movement ot' the plate. rlhe pins Y are in this instance threaded into the support F and held from turning v the lock nuts Z. The plate lll calibrated in i'luid volumes ot cubic t'eet per minute under standard conoitions ot air, as indicated by the large numbers, and indicating means such as a liquid, as red mineral oil. or mercury, is dran'n up into the tube T troni the reservoir il by a variation in the ditierence in pressure between the tivo points in the intake D ot the compressor, to which O and V are connected. lie liquid then indicates` on the plate lll, the volume ot tiuid supplied to the compressor.

In order to adjust the gauge Yfor changes in baronietric conditions, the plate lV is formed ivith an arm a. which is calibrated in degrees of temperature, ani-L is adapted to slide in a groove Z) formed in a projection c ot the frame F. Although the projection c is shoivn integral with the traine F and the arm a is shovvn integral with the plate lll, it is to be understood that tl ese parts may be separate and mounted in any suitable iiiannei. The projection c is in this instance calibrated in baronietric inches, and by moving the arm in and out ot the groove the plate lll maj: be adjusted for changes in Weather conditions. Assuming tor example, that the bai'oinetiic reading 30, and the thermometer reading is TO degrees F., the arm a. should be moved to assume the position shoivn in Figure l, ivith the point opposite the pointy 30. The height ot the liquid column would then be observed to indicate the volume. of air tlovcing, and the speed ot the machine increased or reduced to bring the volume scale reading at the proper ligure desired.

Anv suitable means inajv be provided toi actuating the plate Vl, but in this instance. .l have shon'n a scren' (I having a bearing at each cnd ot? the t ame F, and threaded into the block c. Guides j" secured to the plate ll' bv means ot' the bolts y. guide the movement ot' the .screw block e when the knurled head l1.. which is connected to the screw (Z, is rotatec. so that the plate lV and aim a. are adjusted diagonally, and arc guided by the pins Y moving in the grooves X in the frame F. B v this means, the efange majY be adjusted tor different atmospheric conditions. Y I A Y The arm a, may be arranged at any desired angle With respect tothe tube T and the inclinations ofthe calibrations on the plate ll" depend upon thishangle. -These calibrations 'are actually'portioiis'vot curves plotted with pressures as ordinates and teint Y i s the une.;

peintures as abscissae. The Zero line will then be parallel to the arm a and the other axis ivill be parallel to the tube 'l,`. The curves correspondingl to the various volumes are plotted accordingly: that is to sav, the coordinates ai'e inclined to each other at the angle between the :irin o with the tube T, instead ot with rectangular coordinates.

Yl claim:

l. A volume regulator gauge toi' constant voluinc governing ot' turbo blowers and conipres jors, comprising a t'i une. an adjustable indicating member carried by the trame cal ibrated in fluid volumes under standard conditions, an arm associated .vith said iiidicating member having a scale calibrated in d g ot tciiipeintare`r a stationary part adjacent said arm calibrated in baronietric inches, indicating means subject to intake conditions ot' the turbo machine and adapted to cooperate nath the tluid volume cali brations on said indicating` member, and means for adjusting said indicating member so as to move said temperature scale relative to said stationary baromctric scale in accordance ivith changes in baronietiic conditions, whereby the volume of ihiid supplied to the turbo machine maj' be indicated for atmospheric conditions other than standard.

2. :i volume regulat-'ugauge tot' constant volume governing of turbo blowers and conipressois. comprising an upright traine, a plate adjustablv mounted on the tranie calibrated in tluid volumes under standard conditions, said plate having an arm calibrated in degrees ot tcu'iperature, said traine being provided with a scale calibrated in baroinctric inches. indicating means subject to intake conditions ot' the turbo machine associated ivitli the intake ot the turbo machine and adapted to cooperate with the tluid volume scale on said plate. and manual meansI t'oi' adjusting said plate relative to said larenietric scale on the t'i'aine tor changes in baroinctric conditions. whercbv the volume ot iiuid supplied to the turbo machine inav be indicated 'l'or atmospheric conditions other than standard.

A volume regulator gauge tor constant volume governing oi" turbo blowers and compressors.. comprising an upright trame, a plate adjustabljv mounted on the t' 'ame valibrated in fluid volumes under standard conditions, said plate having an arm calibrated in degrees ot' temperature7 said frame being provided with a scale calibrated in barometric inches, indicating` means actuated b v the fluid volume intake of the turbo machine, and a screw for adjusting said plate relative to said barometric scale on the Vtraine for changes in baroinetric conditions,

whereby the volume of fluid supplied to the turbo machine majv be indicated for these conditions in. terms oi standard conditions.

l. A, volume regulator gan-ge for constant ltltl loa' lit)

volume governing of turbo blowers and compressors, comprising an upright frame, a plate adjustably mounted on the frame cali- Lr ted in iluid'volumes under standard condi ions, said plate having an arm calibrated in degrees ei" temperature, said frame being provided with a scale calibrated in baro metric inches, a tube mounted in the Ytrame, a liquid in said tube, and adapted to rise and 'all in accordance with the iiuid volume intake ofthe machine, and means Jor adjusting said plate relative to said baronne-tric scale on the frame 'for changes in baro-v lnetric and temperature conditions, whereby the volume of iuid supplied to the turbo machine may be indicated in terms of standard conditions determined.

5. A volume regulator gauge for constant volume governing of turbo blowers and compressors, comprising .an upright frame, a

plate having diagonal grooves, guide pin-s mounted in the iframe extending into said grooves, said plate being calibrated in terms of fluid volumes under standard conditions, and having an arm calibrated in degrees of temperature, said trame being provided with a scale calibrated in barometric inches, a tube mounted in said frame, liquid in said tube adapted to rise and fall in accordance with the fluid volume supplied to the machine, and means for adjust-ing said plate relative oto said barometric scale on the frame for changes in barometric conditions, whereby the volume o't fluid supplied to the turbo machine may be indicated directly in terms ot standard conditions.

In testimony whereof I have .signed this specification.

LESLIE R. HUFF. 

